package rkdwogus7.basic;

public class J16_OOP_Q72 {

	public static void main(String[] args) {
		// 상속, 인터페이스, 기본클래스를 이용해서 사각형 둘레 및 면적을 계산하는 프로그램 작성
		J16Retangle r = new J16Retangle(12.0, 24.5);
		System.out.println(r.toString());
		System.out.println(r.getArea());
		System.out.println(r.getCircum());
		
		
		
		
	} // main

	
} // class

// 클래스
class J16Shape implements J16ShapeService {
	private double width;
	private double height;
	
	public J16Shape() { }

	public J16Shape(double width, double height) {
		this.width = width;
		this.height = height;
	}

	public double getWidth() {
		return width;
	}

	public void setWidth(double width) {
		this.width = width;
	}

	public double getHeight() {
		return height;
	}

	public void setHeight(double height) {
		this.height = height;
	}

	@Override
	public String toString() {
		return "J16Shape [width=" + width + ", height=" + height + "]";
	}

	@Override
	public double getArea() {
		return 0;
	}

	@Override
	public double getCircum() {
		return 0;
	}
	
	
}


// 인터페이스
interface J16ShapeService {
	double getArea(  );
	double getCircum(  );
}

class J16Retangle extends J16Shape {
	
	public J16Retangle(double x, double y) {
		super(x, y);
		// 객체 초기화 시, 부모클래스 Shape의 생성자를 호출
	}
	@Override
	public double getArea() {
		return getWidth() * getHeight();
	}
	
	@Override
	public double getCircum() {
		return (getWidth() + getHeight()) * 2;
	}
	
}












